Hurrah! Updater was able to upload 3760 firmware and now the unit is again up & running. I am thankful to all of you for your advice and support!
The trick to update the firmware was to follow this sequence to enable pre-boot:
FW_RGN --> updater --> Plug in USB--> automatic power on --> press finger

I was used to get into pre-boot mode first and then plug the USB cable
power on --> press finger --> Plug in USB --> FW_RGN --> updater

hi everyone! just completely beginner. today i update my unit nuvi 3760, and I got stuck in logo screen. how can I bring it to live again? or should I send it to service? any help? thnks in advance for any answer

We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.